Methods and devices for controlling override of configured grant

Abstract

The present disclosure provides a method in a terminal device for controlling override of a configured grant associated with a first radio resource. The method includes: receiving from a network device a dynamic grant associated with a second radio resource; and determining whether the dynamic grant is to override the configured grant based on whether the first radio resource and the second radio resource at least partially overlap in both time domain and frequency domain.

The invention claimed is: 
     
       1. A method in a terminal device for controlling override of a configured grant associated with a first radio resource, comprising:
 receiving from a network device a dynamic grant associated with a second radio resource; and 
 determining whether the dynamic grant is to override the configured grant based on:
 whether the first radio resource and the second radio resource at least partially overlap in both time domain and frequency domain; and 
 whether a first transmission requirement associated with the configured grant is lower than or equal to a second transmission requirement associated with the dynamic grant. 
 
 
     
     
       2. The method of  claim 1 , wherein said determining whether the dynamic grant is to override the configured grant comprises:
 determining that the dynamic grant is to override the configured grant when the first radio resource and the second radio resource at least partially overlap in the time domain and the frequency domain and the first transmission requirement associated with the configured grant is lower than or equal to the second transmission requirement associated with the dynamic grant. 
 
     
     
       3. The method of  claim 2 , wherein the first transmission requirement being lower than or equal to the second transmission requirement comprises one or more of:
 a received power density associated with the configured grant being lower than or equal to that associated with the dynamic grant; 
 a Hybrid Automatic Repeat reQuest, HARQ, round trip time associated with the configured grant being longer than or equal to that associated with the dynamic grant; and 
 a transmission duration associated with the configured grant being longer than or equal to that associated with the dynamic grant. 
 
     
     
       4. The method of  claim 1 , further comprising:
 receiving, from the network device, configuration information associated with the override of the configured grant, 
 wherein said determining whether the dynamic grant is to override the configured grant is responsive to the configuration information. 
 
     
     
       5. The method of  claim 4 , wherein the configuration information is applicable per configured scheduling configuration, per Medium Access Control, MAC, entity or per cell. 
     
     
       6. The method of  claim 4 , wherein the configuration information is received via Radio Resource Control, RRC, signaling, a MAC Control Element, CE, or a Physical Downlink Control Channel, PDCCH, order. 
     
     
       7. The method of  claim 1 , wherein the configured grant and the dynamic grant are each an uplink grant or a downlink assignment. 
     
     
       8. The method of  claim 1 , wherein said determining whether the dynamic grant is to override the configured grant comprises:
 determining that the dynamic grant is not to override the configured grant when the first radio resource and the second radio resource do not overlap in either the time domain or the frequency domain; and 
 determining that the dynamic grant is not to override the configured grant when the first transmission requirement associated with the configured grant is higher than the second transmission requirement associated with the dynamic grant. 
 
     
     
       9. A terminal device comprising a transceiver, a processor, and a memory, the memory comprising instructions executable by the processor to cause the processor to:
 receive from a network device a dynamic grant associated with a second radio resource; and 
 determine whether the dynamic grant is to override a configured grant associated with a first radio resource based on:
 whether the first radio resource and the second radio resource at least partially overlap in time domain and frequency domain; and 
 whether a first transmission requirement associated with the configured grant is lower than or equal to a second transmission requirement associated with the dynamic grant. 
 
 
     
     
       10. A method in a network device for controlling override of a configured grant associated with a first radio resource, comprising:
 transmitting to a terminal device a dynamic grant associated with a second radio resource; and 
 determining whether the dynamic grant is to override the configured grant based on:
 whether the first radio resource and the second radio resource at least partially overlap in time domain and frequency domain; and 
 whether a first transmission requirement associated with the configured grant is lower than or equal to a second transmission requirement associated with the dynamic grant. 
 
 
     
     
       11. The method of  claim 10 , wherein said determining whether the dynamic grant is to override the configured grant comprises:
 determining that the dynamic grant is to override the configured grant when the first radio resource and the second radio resource at least partially overlap in the time domain and the frequency domain and the first transmission requirement associated with the configured grant is lower than or equal to the second transmission requirement associated with the dynamic grant. 
 
     
     
       12. The method of  claim 11 , wherein the first transmission requirement being lower than or equal to the second transmission requirement comprises one or more of:
 a received power density associated with the configured grant being lower than or equal to that associated with the dynamic grant; 
 a Hybrid Automatic Repeat reQuest, HARQ, round trip time associated with the configured grant being longer than or equal to that associated with the dynamic grant; and 
 a transmission duration associated with the configured grant being longer than or equal to that associated with the dynamic grant. 
 
     
     
       13. The method of  claim 10 , further comprising:
 transmitting, to the terminal device, configuration information associated with the override of the configured grant. 
 
     
     
       14. The method of  claim 13 , wherein the configuration information is applicable per configured scheduling, per Medium Access Control, MAC, entity or per cell. 
     
     
       15. The method of  claim 13 , wherein the configuration information is transmitted via Radio Resource Control, RRC, signaling, a MAC Control Element, CE, or a Physical Downlink Control Channel, PDCCH, order. 
     
     
       16. The method of  claim 10 , wherein the configured grant and the dynamic grant are each an uplink grant or a downlink assignment. 
     
     
       17. The method of  claim 10 , wherein said determining whether the dynamic grant is to override the configured grant comprises:
 determining that the dynamic grant is not to override the configured grant when the first radio resource and the second radio resource do not overlap in either the time domain or the frequency domain; and 
 determining that the dynamic grant is not to override the configured grant when the first transmission requirement associated with the configured grant is higher than the second transmission requirement associated with the dynamic grant. 
 
     
     
       18. A network device comprising a transceiver, a processor, and a memory, the memory comprising instructions executable by the processor to cause the processor to:
 transmit to a terminal device a dynamic grant associated with a second radio resource; and 
 determine whether the dynamic grant is to override a configured grant associated with a first radio resource based on:
 whether the first radio resource and the second radio resource at least partially overlap in both time domain and frequency domain; and 
 whether a first transmission requirement associated with the configured grant is lower than or equal to a second transmission requirement associated with the dynamic grant.